It's also useful in that you can pre-order a Shinkansen ticket, for example, and link that purchase to your Suica card, which you then use for the Shinkansen gate. If there are other fees (which there may be) they're just deducted from the money the card holds, as usual. Makes everything very simple.
For me a physical card is easier than using a phone. A phone is so much larger so I would need to get it from a pocket somewhere, while the Suica card I can keep in my jeans pocket or some other easy place.
Also, travelers beware: some of the special "Suica" sold at Haneda (and maybe Narita, too?) expires and is completely dead after 30 days, even if it has a balance. I found this out the hard way. Buy a proper Suica at Shinagawa or another non-airport station.
(yes, the antenna is in the top FaceID/Dynamic Island area, Osaifu Keitai spec requires a □つ icon wherever antenna is located, which Apple managed to completely ignore)
Because it's not the easiest setting to find: Settings/Wallet & Apple Pay/Express Transit Card
Every time I see a shoddy piece of work, I know which constraint was sacrificed.
In Prague city transit does not have limiting gates. If you bought unlimited ticket, you just walk in bus/tram/metro and that is it. No touching, scanning, showing, nothing. Maybe once a month (or even rarer) you might encounter a patrolling controller who would ask you to show your ticket, but that's it.
Makes for such a smooth journey as most people are doing the right thing.
And that's the difference. IIRC, you have to periodically top up your Suica card with money which then gets deducted from the balance each time you use it.
In Europe, there is no such thing - sure, you can buy a lot of single ride tickets and then use them when you need to, but you have to stamp the ticket when you start each ride, which does seem a little more inconvenient.
The European public transport system is not some centralised system that should be generalised like this. The system in the Netherlands has worked like Suica for years (but without the extremely fast card reading unfortunately). You simply tap on with your public transport card or bank/credit card and tap out when you get off. Subscriptions, automatic/manual top ups, it's all possible.
- In London you top up your Oyster card and pay a fare according to the zone your travelling to. Metro is gated.
- In Paris your load up tickets in your Navigo pass and pay a flat rate every time you take the metro or RER. It's also gated.
- In most (all ?) Swiss cities you don't have any card to charge and have to get a ticket for every travel (like in London your fare amount depends is zone dependent); however there's an app that let you get your location at the start of your travel and end of your travel and automatically charges you the correct fare. There are no gates.
A lot of European folks seem to have positive experiences with the validator system as something convenient, less intrusive and high bandwidth, overall superior, but personally I doubt it scales out to scale and transit models of places like Shinjuku. Most rides in Tokyo commuter rails are point to point and Japanese commuters go through gate like a marching army, so it means temporary riders has to disrupt the march to get to the validator, and also a single validator in the middle of the gate area isn't going to meet demands but increasing the number of the machines kills the benefits.
btw: JRE is actually doing experiments with more modernized touch-free gates, one based on facial recognition a la Minority Report, and another based on UWB radio gadget added to phones. It is speculated that UWB is likely the intended path forward.
People not in Japan/Singapore/Korea/China should experience what a proper transit card done looks like.